/*
 * Copyright (C) 2009, 2010, B3log Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.b3log.nide.service;

import java.io.FileReader;
import org.apache.commons.io.IOUtils;
import org.b3log.nide.Nide;
import org.b3log.nide.model.source.java.JavaMethod;
import org.json.JSONArray;
import org.json.JSONObject;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import static org.testng.Assert.*;

/**
 * {@link JavaCodeAssistant} test case.
 *
 * @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
 * @version 1.0.0.4, Aug 13, 2010
 */
public final class JavaCodeAssistantTestCase {

    /**
     * Java code assistant.
     */
    private JavaCodeAssistant javaCodeAssistant;
    /**
     * Java source code.
     */
    private String javaSourceCode;

    /**
     * Initilizes and test instance.
     *
     * @throws Exception exception
     */
    @BeforeTest
    public void beforeTest() throws Exception {
        javaCodeAssistant = new JavaCodeAssistant();

        final String testDataFilePath =
                JavaCodeAssistantTestCase.class.getClassLoader().
                getResource("JavaCodeAssistantTestClass.txt").toURI().
                getPath();
        javaSourceCode = IOUtils.toString(new FileReader(testDataFilePath));
    }

    /**
     * Tests {@linkplain JavaCodingManager#getMethods(java.lang.String, int, int) }
     * method.
     *
     * @throws Exception exception
     */
    @Test
    public void getMethods() throws Exception {
        final int sLineNum = 15, sColumnNum = 23;
        final JSONArray methods =
                javaCodeAssistant.getMethods(javaSourceCode, sLineNum,
                                             sColumnNum);
        System.out.println(methods.toString(Nide.INDENT));

        final JSONObject toStringMethod = methods.getJSONObject(1);
        assertEquals(toStringMethod.getString(JavaMethod.METHOD_MODIFIERS),
                     "public");
        assertEquals(toStringMethod.getString(JavaMethod.METHOD_RETURN_TYPE),
                     "java.lang.String");
        assertEquals(toStringMethod.getString(JavaMethod.METHOD_NAME),
                     "toString");
        assertEquals(toStringMethod.getJSONArray(
                JavaMethod.METHOD_PARAMETER_TYPES).length(), 0);
        assertEquals(toStringMethod.getJSONArray(
                JavaMethod.METHOD_EXCEPTION_TYPES).length(), 0);
    }
}
